Seismodeck

Spectra and time histories

Purpose-Built

An offline structural-dynamics workbench for accelerogram import, baseline correction, SDOF response, elastic spectra, damping comparisons, Arias intensity, and reports.

Core Features

Acceleration CSV import
Baseline and taper controls
SDOF response histories
Elastic spectra across damping
Arias and duration measures

Private by Design

No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features work offline, and your work stays on device unless you deliberately share or export it.

Use It Responsibly

Educational and preliminary analysis only. Code design, nonlinear behavior, soil effects and record scaling require qualified engineering review.